Penjelasan dengan langkah-langkah:
= 5! × 4!
(5–2)! (4–3)!3!
3! 1!3!
= 5×4×3! × 4×3!
3! 3!
= 5 × 4 × 4
= 20 × 4
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Penjelasan dengan langkah-langkah:
5P2 × 4C3
= 5! × 4!
(5–2)! (4–3)!3!
= 5! × 4!
3! 1!3!
= 5×4×3! × 4×3!
3! 3!
= 5 × 4 × 4
= 20 × 4
= 80